#include<iostream>
using namespace std;
int main()
{
	char arr1[] = "welcome to wuhan!!!";
	
	char arr2[] = "###################";
	
		int right = strlen(arr1) - 1;
		int left = 0;
	while (left <= right)
	{
		arr2[left] = arr1[left];
		arr2[right] = arr1[right];
		printf("%s\n", arr2);
		left++;
		right--;
	}
	return 0;
}